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1. 发明专利

JPS56138432A REDUCING DEVICE OF HARMFUL EXHAUST FROM DIESEL ENGINE 失效
公开(公告)号：JPS56138432A
公开(公告)日：1981-10-29
申请号：JP4209980
申请日：1980-03-31
申请人： HITACHI SHIPBUILDING ENG CO
发明人： NAGAI SUSUMU , ASADA CHIYUUKEI , DANNO SATORU
IPC分类号： F02B47/10 , F02B3/06 , F02D21/04 , F02M25/10
摘要： PURPOSE:To perform economical atmospheric operation of an engine at an ordinary place, switch the engine to regenerative cycle operation in a tunnel or the like and reduce discharge of harmful exhaust from the engine, by optionally selecting the atmospheric and regenerative cycle operations. CONSTITUTION:In case of atmospheric operation, an oxygen flow rate control valve 5 and gate valve 11 are closed and an intake valve 12 and exhaust valve 13 are opened. The atmospheric air is sucked from the intake valve 12 and fed to an engine 1. Exhaust gas is cooled by an exhaust gas cooler 7 with directly jetted cooling water, and vapor in the liquefied exhaust gas is separately discharged by a water separator 9. In case of regenerative cycle operation, the intake valve 12 is closed, and the oxygen flow rate control valve 5 and the gate valve 11 are opened. Oxygen of prescribed concentration is fed to circulating exhaust gas by an oxygen mixer, heated by an intake air heater 14, fed to the engine 1 and completely burnt. The exhaust gas is cooled to remove its water, then a surplus amount is released from a pressure regulator valve 6.

2. 发明专利

JPS5471423A A METHOD OF RECOVERING LNG GASIFYING POWER 失效
公开(公告)号：JPS5471423A
公开(公告)日：1979-06-08
申请号：JP13823777
申请日：1977-11-16
申请人： HITACHI SHIPBUILDING ENG CO
发明人： ASADA CHIYUUKEI , NAGAI SUSUMU
IPC分类号： F17C9/02 , F17C9/04
摘要： PURPOSE:In LNG gasification, equal-volume gasification is operated by using discharged heat as gasifying heat source, and by making pressure-increased gasified natural gas expand at equal temperature, gasifying power is recovered by the efficient use of remaining heat. CONSTITUTION:LNG which has flowed out of tank 1 is given pressure by pump 2 and is fed to gasifying chamber 4 intermittently via ejection timing valve 3. LNG is ejected into the chamber through many ejection nozzles 5. Discharged heat supply pipe 6 is provided in gasifying chamber 4 in a zigzag form, to which heated exhaust gas is fed. When ejected LNG is gasified by dishcarged heat Q, pressure rises instantaneously under a constant volume 7, and then piston 9 of engine 7 is pushed downward by this pressure and thereby enging 7 is driven. Thus, gasifying power is recovered.

3. 发明专利

JPS6033025A CORRECTING METHOD OF CRANK ANGLE OF DIESEL ENGINE ANALYZING DEVICE 失效
公开(公告)号：JPS6033025A
公开(公告)日：1985-02-20
申请号：JP14210683
申请日：1983-08-02
申请人： HITACHI SHIPBUILDING ENG CO
发明人： MURAKAMI TAKESHI , MITARAI HIROAKI , ASADA CHIYUUKEI , OGINO HIROYUKI , YAMAMOTO TOSHIO
IPC分类号： G01M15/04 , F02B3/06 , F02D45/00 , F02P5/15 , G01B21/22 , G01M15/06
摘要： PURPOSE:To remove completely the influence of rotational variation which has a larger period than a gear signal by correcting the angle value of a timing signal for analysis on the basis of section times detected between respective gears. CONSTITUTION:A timer TDC latch 13 and a counter TDC latch 19 latch the current time and the counted value of a timing signal counted so far. A timer gear latch 12 latches the counted value of the current timing signal when the 1st gear signal is generated, and a latch 15 outputs the time of the timing signal right before the gear signal as a signal. A latch signal generator 14 switches the output signal from the latches 15 to 16. A CPU calculates the section time between the latch signal and gear signal and stores it. Similar processing is performed when the 2nd gear signal is generated. The CPU calculates and stores the angle of each timing signal. Those angle signals are corrected on the basis of the gear signal.

4. 发明专利

JPS58170836A CONTROL DEVICE FOR DIESEL ENGINE 失效
公开(公告)号：JPS58170836A
公开(公告)日：1983-10-07
申请号：JP5451782
申请日：1982-03-31
申请人： HITACHI SHIPBUILDING ENG CO
发明人： TOMOKIYO OSAMU , ASADA CHIYUUKEI , KAWASAKI TADASHI
IPC分类号： F02D41/04 , F02B3/06 , F02D13/02 , F02D41/02
摘要： PURPOSE:To reduce a fuel consumption rate, by providing an arithmetic control circuit adapted to control opening/closing timing of a plurality of control valves for a Diesel engine, and by driving the valve to open and close respectively in response to the valve opening/closing instruction signals read out correspondingly to a rotation angle detected. CONSTITUTION:A signal indicating a revolution angle of crankshaft 7 of a Diesel engine 1 is input to an electronic control circuit 10 and a F/V converter 11 via an encoder 8, while a signal indicating various engine operating conditions is input to a central processing unit (CPU) 14 via an A/D converter 12. The CPU 14 computes optimum opening/closing timings for an intake and exhaust valves 4a and 6a, a fuel valve 5a and the like, a signal preset for every revolution angle is written to a memory of control circuit 10 and the preset signal thus stored is read out to send a signal instructive of opening/closing drivings of each control valve, correspondingly to a signal indicating a detected revolution angle. In this manner, the valves are controlled to open and close at optimum timings, thereby reducing a fuel consumption rate.

5. 发明专利

JPS54161739A SLUDGE DREDGING METHOD 失效
公开(公告)号：JPS54161739A
公开(公告)日：1979-12-21
申请号：JP7023578
申请日：1978-06-09
申请人： HITACHI SHIPBUILDING ENG CO
发明人： OGINO ETSUO , ASADA CHIYUUKEI , FUJITA JINSHIROU , YASUDA KENJI
IPC分类号： E02F3/88

6. 发明专利

JPS5467809A HEAT ENGINE USING LIQUID HYDROGEN 失效
公开(公告)号：JPS5467809A
公开(公告)日：1979-05-31
申请号：JP13543277
申请日：1977-11-10
申请人： HITACHI SHIPBUILDING ENG CO
发明人： ASADA CHIYUUKEI , NAGAI SUSUMU
IPC分类号： F02B43/10 , F02G5/02
摘要： PURPOSE:To provide an open type heat engine using hydrogen as energy source and produced steam as operating fluid, and which never presents exhaust gas polution problems, permits ready transportation and storage of fuel and has excellent energy efficiency. CONSTITUTION:Liquid hydrogen within a tank 1 is forced by a pump 2 into a heat exchanger 3 where it is heated by heat exchange with atmospheric air, and then it is thermally gasified in a regenerator 4 and supplied to an iternal combustion engine 5. Meanwhile, liquid oxygen within a tank 6 is forced by a pump 7 through a heat exchanger 8 to a gasifaction regenerator 9, and thence it is supplied in the gas phase to the engine 5. Thus, hydrogen as fuel is subjected to combustion with oxygen as oxidizer to produce steam. Thus, steam is used as operating gas in the engine, and then it is supplied together with added dilution gas to regenerators 4 and 9 and a cooler 11 through recirculation ducts 10, whereby waste heat and dilution gas are recovered.

7. 发明专利

JPS5467808A HEAT ENGINE USING LIQUID HYDROGEN 失效
公开(公告)号：JPS5467808A
公开(公告)日：1979-05-31
申请号：JP13543177
申请日：1977-11-10
申请人： HITACHI SHIPBUILDING ENG CO
发明人： NAGAI SUSUMU , ASADA CHIYUUKEI
IPC分类号： F02B43/10 , F02G5/02
摘要： PURPOSE:To provide an open type heat engine using hydrogen as energy source and produced steam as operating fluid, and which never presents exhaust gas polution problems, permits ready transportation and storage of fuel and has excellent energy efficiency. CONSTITUTION:Liquid hydrogen within a tank 1 is forced by a pump 2 to a heat exchanger 3 where it is heated by heat exchange with atmospheric air, and then it is supplied into a regenerator 4 for thermal gasifaction before it is supplied to an internal combustion engine 5. Meanwhile, liquid oxygen within a tank 6 is forced by a pump 7 through a heat exchanger 8 to a gasifaction regenerator 9, and thence it is supplied in the gas phase to the engine 5. Thus, hydrogen as fuel is subjected to combustion with oxygen as oxidizer to produce steam. The steam thus produced is used as operating gas for the engine, and then it is exhausted together with steam added as diluting agent to a turbine 13, and thence it is supplied through a circulation duct 14 to the units 4, 9 and 12.

8. 发明专利

JPS5872607A EXHAUST GAS CONTROLLER OF PISTON CONTROL HOLE TYPE 失效
公开(公告)号：JPS5872607A
公开(公告)日：1983-04-30
申请号：JP17050981
申请日：1981-10-24
申请人： HITACHI SHIPBUILDING ENG CO
发明人： NAGAI SUSUMU , ASADA CHIYUUKEI , SUZUKI AKIRA
IPC分类号： F01L5/00 , F01L9/02 , F02B25/24
摘要： PURPOSE:To simplify a mechanism, reduce a level of noise and control an engine to optimum operation, by forming a fluid chamber and rod chamber with a working piston, connecting the first and second lead pipes respectively to the fluid chamber and the rod chamber and alternatively communicating the lead pipes to an accumulator through a control valve. CONSTITUTION:The first lead pipe 16A and the second lead pipe 16B are connected respectively to a fluid chamber and rod chamber 8, formed by a working piston 7, and each lead pipe 16A, 16B is connected to an accumulator 12 through a hydraulic pressure control valve 14. Then a control means (cam) 15, alternatively communicating the first lead pipe 16A and the second lead pipe 16B to the accumulator 12, is provided, and a stop valve 17 and speed control valve 18 are interposed in the first lead pipe 16A connected to the fluid chamber.

9. 发明专利

JPS5710735A VERY HIGHLY SUPERCHARGED COMPOUND INTERNAL COMBUSTION ENGINE WITH HIGH OUTPUT AND LOW NOX 失效
公开(公告)号：JPS5710735A
公开(公告)日：1982-01-20
申请号：JP8691980
申请日：1980-06-25
申请人： HITACHI SHIPBUILDING ENG CO
发明人： NAKANISHI TAKESHI , ASADA CHIYUUKEI
IPC分类号： F01N3/08 , F02B37/20 , F02B41/10
摘要： PURPOSE:To dispense with a denitration device and increase the output of an engine, by adopting a denitration combustor and utilizing the output increase of a turbo-compressor due to that of an exhaust turbine to heighten intake pressure. CONSTITUTION:A denitrating combustion chamber 10, which is composed of a combustion chamber 7, a reduction chamber (denitration chamber) 8 and a complete combustion chamber 9, is provided in a halfway part of an exhaust pipe 6 which connects the body 1 of an engine to an exhaust turbine 2. Fuel is added into the combustion chamber 7 and burned to generate intermediate products. In the next reduction chamber 8, NOx in exhaust gas and the intermediate products are caused to react with each other so that the NOx is decomposed into water and nitrogen. In the complete combustion chamber 9, the intermediate products are completely burned. The intake pressure in the engine body 1 is heightened by the output increase of a compressor 3 due to that of the exhaust turbine 2 to greatly augment the output of the engine.

10. 发明专利

JPS56138433A REDUCING DEVICE OF HARMFUL EXHAUST FROM DIESEL ENGINE 失效
公开(公告)号：JPS56138433A
公开(公告)日：1981-10-29
申请号：JP4210080
申请日：1980-03-31
申请人： HITACHI SHIPBUILDING ENG CO
发明人： NAGAI SUSUMU , ASADA CHIYUUKEI , DANNO SATORU
IPC分类号： F02B47/10 , F02B3/06 , F02D21/04 , F02M25/10
摘要： PURPOSE:To reduce a discharge amount of harmful exhaust from an engine in a tunnel or the like, by providing a three-way valve in the downstream side of a circulating passage from a pressure regulating valve and selecting operations of the engine optionally from that in the atmosphere to that by regenerative cycle. CONSTITUTION:There are provided an exhaust valve 11, emitting exhaust gas by communicating an exhaust gas circulating passage 3 to a side of the atmosphere, and an intake valve 12, located immediately before a feed air port 1b and sucking the atmospheric air by communicating the exhaust gas circulating passage 3 to a side of the atmosphere, in the downstream side of the circulating passage 3 from a pressure regulative valve 6. Said intake valve 12 is constituted by a three-way valve closing a section of the exhaust gas circulating passag 3 between the exhaust valve 11 and the intake valve when the intake valve is opened for intake operation. Accordingly, operation of an engine in the atmosphere is performed by closing an oxygen flow rate control valve 5 and opening the exhaust valve 11 and the intake valve 12, while operation of the engine by regenerative cycle is performed by opening the oxygen flow rate control valve 5 and opening the exhaust valve 11 and the intake valve 12.

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